HTR

Here is the step-by-step process:

Copy the Code: Scroll up to the last block of code I provided (the "Final: Sessions + Days + Loopbacks (Replay Fixed)" version) and click the "Copy" button in the top right corner of the code block.

Open Pine Editor:

Go to your TradingView chart.

Look at the very bottom of the screen. You will see a tab labeled "Pine Editor". Click it to open the panel.

Paste the Code:

If there is already code in there (like a default script), delete everything so the editor is completely blank.

Paste the code you just copied (Ctrl+V or Cmd+V).

Save the Script:

Click the "Save" button (or "Untitled Script") in the top right of the Pine Editor panel.

Give it a name, for example: My Custom Session & Days.

Click Save.

Add to Chart:

Click the "Add to Chart" button (next to the Save button